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Silex documentation is licensed under a
Creative Commons Attribution-Share Alike 3.0
Unported License.
The HttpCacheProvider provides support for the Symfony2 Reverse Proxy.
$app->register(new Silex\Provider\HttpCacheServiceProvider(), array(
'http_cache.cache_dir' => __DIR__.'/cache/',
));
Silex already supports any reverse proxy like Varnish out of the box by setting Response HTTP cache headers:
use Symfony\Component\HttpFoundation\Response;
$app->get('/', function() {
return new Response('Foo', 200, array(
'Cache-Control' => 's-maxage=5',
));
});
Tip
If you want Silex to trust the X-Forwarded-For* headers from your reverse proxy, you will need to run your application like this:
use Symfony\Component\HttpFoundation\Request;
Request::trustProxyData();
$app->run();
This provider allows you to use the Symfony2 reverse proxy natively with Silex applications by using the http_cache service:
$app['http_cache']->run();
The provider also provides ESI support:
$app->get('/', function() {
return new Response(<<<EOF
<html>
<body>
Hello
<esi:include src="/included" />
</body>
</html>
EOF
, 200, array(
'Cache-Control' => 's-maxage=20',
'Surrogate-Control' => 'content="ESI/1.0"',
));
});
$app->get('/included', function() {
return new Response('Foo', 200, array(
'Cache-Control' => 's-maxage=5',
));
});
$app['http_cache']->run();
For more information, consult the Symfony2 HTTP Cache documentation.
